[MIPS] Handle aliases in vmalloc correctly.
flush_cache_vmap / flush_cache_vunmap were calling flush_cache_all which -
having been deprecated - turned into a nop ...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/asm-mips/cacheflush.h b/include/asm-mips/cacheflush.h
index 01e7ead..d5c0f2f 100644
--- a/include/asm-mips/cacheflush.h
+++ b/include/asm-mips/cacheflush.h
@@ -63,8 +63,22 @@
}
extern void (*flush_icache_range)(unsigned long start, unsigned long end);
-#define flush_cache_vmap(start, end) flush_cache_all()
-#define flush_cache_vunmap(start, end) flush_cache_all()
+
+extern void (*__flush_cache_vmap)(void);
+
+static inline void flush_cache_vmap(unsigned long start, unsigned long end)
+{
+ if (cpu_has_dc_aliases)
+ __flush_cache_vmap();
+}
+
+extern void (*__flush_cache_vunmap)(void);
+
+static inline void flush_cache_vunmap(unsigned long start, unsigned long end)
+{
+ if (cpu_has_dc_aliases)
+ __flush_cache_vunmap();
+}
extern void copy_to_user_page(struct vm_area_struct *vma,
struct page *page, unsigned long vaddr, void *dst, const void *src,